从主机名获取服务器IP地址 [英] Obtaining a server IP address from hostname

问题描述

当对主机名执行 NSURLRequest 时，是否可以获取响应来自的服务器的IP地址？

When performing an NSURLRequest to a hostname, is it possible to obtain the IP address of the server that the response came from?

NSURL 方法：

- (NSString *)host;

只返回主机名，我看不到从任何其他 NSURL 方法。

simply returns the hostname, and I see no way of obtaining the IP address from any of the other NSURL methods.

也许有一种方法可以在启动 NSURLRequest

Perhaps there is a way of performing a host lookup before inititing the NSURLRequest?

推荐答案

示例代码

struct hostent *hostentry;
hostentry = gethostbyname("google.com");
char * ipbuf;
ipbuf = inet_ntoa(*((struct in_addr *)hostentry->h_addr_list[0]));
printf("%s",ipbuf);

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